Topics:
Animal Nutrition, Animal Refresher
Metalloenzymes and Trace Minerals
Which of the following pair is/are correctly matched?
- Se-containing enzyme: Glutathione peroxidase
- Cu-containing enzyme: Cytochrome oxidase & Uricase
- Zn-containing enzyme: Carbonic anhydrase & Alcohol dehydrogenase
- All the above — Correct Answer
Explanation:
Correct Answer: All the above
All three pairs of metal-enzyme associations are correctly matched: Selenium with Glutathione peroxidase, Copper with Cytochrome oxidase & Uricase, and Zinc with Carbonic anhydrase & Alcohol dehydrogenase.
Metalloenzymes — Complete Reference Table
| Metal | Associated Enzymes |
|---|---|
| Copper (Cu) | Cytochrome oxidase, Uricase, Ceruloplasmin |
| Selenium (Se) | Glutathione peroxidase |
| Zinc (Zn) | Carbonic anhydrase, Alcohol dehydrogenase, Alkaline phosphatase |
Additional Metal-Specific Notes
- Selenium & Vitamin E: synergistic effect
- Copper: Turacin (feather pigment in turacos contains Cu)
- Zinc deficiency → Parakeratosis in pigs, Hyperkeratosis in cattle, Swollen hock syndrome in chickens
- Chromium: Glucose Tolerance Factor (GTF)
Why Other Options Are Wrong
- Each individual pair is correctly matched on its own — making "All the above" the complete and correct answer
📚 About this Topic — Animal Nutrition
This multiple choice question is from Animal Nutrition, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Nutrition to strengthen your preparation.
